Reviewing Chemical Reactions

A substance used in a chemical reaction is a

• product

• reactant

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A substance made during a chemical reaction is a

• reactant

• product

Tags

NGSS.MS-PS1-2

A formula that describes what happens during a chemical reaction is a

• product

• chemical equation

• reactant

Tags

NGSS.MS-PS1-5

Reactants are always listed on the ________ side of a chemical equation.

• left

• right

The product is always listed on the __________ side of a chemical equation.

• left

• right

The Law of Conservation of Mass states:

• Energy cannot be created or destroyed during a chemical reaction.

• Heat cannot be created or destroyed during a chemical reaction.

• Matter cannot be created or destroyed during a chemical reaction.

• Materials cannot be created or destroyed during a chemical reaction.

Tags

NGSS.MS-PS1-5

In a ________ reaction, elements or compounds come together to form new compounds.

• decomposition

• combination

• replacement

Tags

NGSS.MS-PS1-1

Compounds split apart to form smaller compounds in a _____ reaction.

• decomposition

• combination

• replacement

In a ______ reaction, one or more compounds split apart and switch places.

• decomposition

• combination

• replacement

How many atoms of hydrogen are in H2O2?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1